S55 intercooler setup on an E90 N55

[9krpmrx8]

What size male thread was on this Vader fitting do you know? I think the available Radium fittings won’t work as they say they are for 19mm port and the port on the valve cover is 25mm.

I'm not sure on the size, but if you measure the ID of the port on the valve cover, it is that size.